X4v2 Engine Independent Certified Testing at
Orbital - 31/03/2008
We modified the X4v2 engine to increase fuel efficiency
focusing around the 2,000rpm range where most driving
occurs, then sent the engine to Orbital Australia Pty
Ltd for independent Certified testing. After the engine
was setup on their dynamometer, Brad travelled to
Orbital for the testing. We tested the engine under the
standard air/fuel ratio of 14.5:1 and also at our
desired air/fuel ratio of 15.2:1 which maximizes the
efficiency of the current configuration. |
The Directors are pleased to announce that the X4v2
petrol engine achieved a repeatable Brake Specific Fuel
Consumption (BSFC) figure of 212g/kW-h (38.6% engine
efficiency) with a best figure of 207g/kW-h (39.5%) at
our requested target test of 2,000rpm with a BMEP load
of 450kpa (approximately 75% load) and an air/fuel ratio
of 15.2:1 using 98 RON petrol and a 10:1 compression
ratio. We also achieved a BSFC figure under the same rev
and load conditions using an air/fuel ratio of 14.5:1 of
238g/kW-h (34.4%) -
Click Here for Full Report |
